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Question
(i) What is the importance of a Relief Map.
(ii) How can we show occupations by the evidences of names or by inference of relief features?
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Solution
(i) The study of relief features requires careful handling. It is a bird’s eye view of the entire . area where hills, plateau, and down lands are shown clearly. The gap between, two hills is marked. Maximum heights may be located and denoted with grid reference.
(ii) The following list shows the occupations by the evidence of names or by inference of relief features.
| Evidences or Inferences of Relief | Amplification of Occupations |
| (i) Forest-green patch | Forestry |
| (ii) Yellow colour and orchards | Agriculture |
| (iii) Pastures and meadows or scrub | Cattle grazing or sheep rearing. |
| (iv) Quarries and mines | Quarrying and mining |
| (v) Settlement near main roads-Annual fair (written) | Trade |
| (vi) Mines and factories | Industrial development |
| (vii) Park, golf courses, rifle ranges | Recreation and cultural development |
RELATED QUESTIONS
How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
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- Give the six-figure grid reference for the temple that is located to the southwest of Pithapura settlement. (1)
- Give the four-figure grid reference for a settlement where people of the region meet socially and for trade at least once in year. (1)
-
- What is the pattern of drainage seen in the grid square 2118? (1)
- What is the pattern of settlement seen in the grid square 1923? (1)
- What do each of the two numbers (281 printed in black colour and 20 printed in red colour) in the grid square 1818 indicate? (2)
-
- Name any two man-made features in grid square 2419. (1)
- Name any two natural features in grid square 2118. (1)
- What is the significance of the following?
- Fire line in grid square 2417. (1)
- Water body found in grid square 2221. (1)
- Calculate the area of the region between 16 and 19 Eastings and 18 and 22 Northings. Give your answer in square kilometers. (2)
- Give a reason for each of the following:
- The water in some of the wells in the north-west quarter of the map is not fit for drinking. (1)
- The region near Anadra and Gulabgani has many causeways. (1)
-
- What is the main means of irrigation used by people living in the area shown on the map? (1)
- What is the main occupation of the people of the region shown on the map? (1)
- Which, according to you, is the most important settlement? Give a reason to support your answer. (2)
- Name any two means of transport used by the people living in the area shown on the map extract. (2)
What do you understand by the term Grid?
What is a Fire line?
The distance is measured on the topographic map. There are two methods of measuring distance on the toposheets,
(i) Direct-method,
(ii) Indirect method.
Measuring straight distance is a direct method and measuring through a winding course is an indirect method. Explain both the methods.
Give the meanings of the important terms used in toposheets.
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a) Name and give the four figure grid reference of a settlement where the people of the region meet at least once a year.
(b) What does the conventional symbol at grid reference 145132 mean?
(c)
If a man were to walk from Gulabganj (1820) to Harmatiya (1916):
(i) In which direction would he be walking?
(ii) Which are the two different kinds of roads that he would be using?
(d)
What do the following numbers in grid square 1718 and 1818 mean?
(i) 280 (ii) 281
(e) What are the two differences between the settlement Bamba in 1914 and those in 1813?
(f) Name four facilities that Anadra has which makes it an important settlement
(g) What is the quickest means of communication for the people of Dabani (1313)?
(h) What do the following mean:
(i) Brackish in 1915 (ii) Causeway in 1715 (iii) 6r in 1218?
(i) Mention two factors which support the following:
(i) The Sipu river is in its middle course
(ii) The rainfall in the region shown in the map extract is seasonal.
(j) What is the distance in kilometres between the distance stone 20 in 1818 and the causeway in 1715 along the metalled road?
Study the extract of the Survey of India Map Sheet No. 45D/10 and answer the following questions: (Map G)
(a) Give the four-figure grid reference of:
(i) Dadarla (ii) Bhamra
(b) Which is the largest settlement shown on the map extract? Which one communication facility is exclusively available to this settlement?
(c) What does RF stand for? State the RF of the map provided to you.
(d) What is the total area of the actual ground represented in the map extract? (Show with the help of a simple calculation)
(e) What is meant by ‘contour interval’? State the contour interval of the toposheet provided to you
(f) State the highest and the lowest spot heights found on the map extract. Also mention whether they are in metres or in feet.
(g) Give the six-figure grid reference of:
(i) Spot height 339 (ii) Permanent hut located near Dhad Talao.
(h) What, according to you is the main (i) occupation, and (ii) religion of the people of the above area?
(i) Name one ‘natural’ and one ‘man-made’ source of irrigation used in this region.
(j) Name the general mode of transportation used in this region. What special feature of this mode is mentioned in the map extract?
Study the extract of the Survey of India Map Sheet No. 45 D/7 (A – B) and answer the following questions:
(a) (i) What does the abbreviation R. F., stand for?
(ii) What does 20r (grid sq. 8295) mean.
(iii) What does V near Shergadh village in the south-east corner mean.
(b)
(i) What type of relief do you observe in north-west of the map (West Panswala)?
(ii) Why is the land shown in white shade not put to cultivation?
(c)
(i) What seems to be the importance of village Jegol in grid sq. 8590 in the south?
(ii) Find out the length of the joint stream of rivers Sipu, Varka and Hanva.
(d) What type of relief feature is found close to Varkanala and Hanvanala near Gangudra in the centre of the area?
(e) Give four figure grid reference of a well marked meander of Varkanala and Sipu river.
(f)
(i) What does the black line marked 24°30′ in the north denote.
(ii) What is the meaning of 72°20′ north-south black line in the western part of the map?
(iii) What do the figures 280, 300, 500 etc., written in brown on east margin of the map indicate.
(g)
(i) Point out two man-made features on the map.
(ii) What is the direction of the river Sipu 83 C 86 grid lines?
(iii) What is the grid reference (four figures) of the lime kiln located near Rampura village in the north-west?
Write short note on ‘Marginal Information’ in Topographical sheets.
